(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

68% of students favor a new policy, we are interested in the proportion of 45 students in a math class who favor the same policy.

What is the probability that the proportion of the class that favors the policy is no more than two-thirds?

2. Relevant equations

3. The attempt at a solution

I found the mean, .68, and the standard deviation, .047. I don't know where to take it from here though

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# Homework Help: Normal approximation for the proportion P hat

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